Surface to air missiles in London

What rot. They can't use them any way.
Do they really think that they'll fire missiles at a Jet over London and bring it down?
a) 300+ passengers on board
b) where will it land?
It could be on Buckingham Palace killing how many people.

I think its just propaganda. They (the USA) let 2 jets fly into the twin towers. Why was that?

Doesn't seem to make sense to me.